WO2022050182A1 - Structure de liaison - Google Patents

Structure de liaison Download PDF

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Publication number
WO2022050182A1
WO2022050182A1 PCT/JP2021/031466 JP2021031466W WO2022050182A1 WO 2022050182 A1 WO2022050182 A1 WO 2022050182A1 JP 2021031466 W JP2021031466 W JP 2021031466W WO 2022050182 A1 WO2022050182 A1 WO 2022050182A1
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WO
WIPO (PCT)
Prior art keywords
recessed portion
penetrating
recessed
melted
recess
Prior art date
Application number
PCT/JP2021/031466
Other languages
English (en)
Japanese (ja)
Inventor
潤司 藤原
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to JP2022546288A priority Critical patent/JPWO2022050182A1/ja
Priority to CN202180046284.6A priority patent/CN115803137A/zh
Publication of WO2022050182A1 publication Critical patent/WO2022050182A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/007—Spot arc welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/02—Seam welding; Backing means; Inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded

Definitions

  • This disclosure relates to a joint structure.
  • Patent Document 1 a first metal material and a dissimilar material that is difficult to weld to the first metal material are superposed, and a fillering material (welding wire) is provided through a penetration portion of the dissimilar material.
  • a fillering material welding wire
  • the molten filler material forms a brim portion so as to cover the outer peripheral portion on the upper surface side of the penetrating portion of the dissimilar material.
  • the dissimilar material and the first metal material are fixed by the compressive fixing force between the brim portion and the first metal material due to the solidification shrinkage of the filler material with respect to the first metal material.
  • the present disclosure has been made in view of this point, and an object thereof is to increase the bonding area of the filler metal so that the bonding strength can be secured.
  • the first invention was welded to a first member made of a metal material, a second member made of a material difficult to weld to the first member, and the first member. It has a joining structure in which a third member made of a filler material is joined to each other, and at least one of the first member and the second member is the first member and the second member.
  • the second member has a recess formed in the overlapping surface of the recess, and has a penetrating portion having an opening at a position corresponding to the recess and an inner diameter smaller than the opening width of the recess.
  • the third member has an overhanging portion that is welded to the first member through the penetrating portion and that protrudes radially outward from the penetrating portion inside the recessed portion, and the first member. Due to the solidification and contraction of the third member with respect to the member, the second member is compressed and fixed between the first member and the third member.
  • a recess is formed in at least one of the first member and the second member.
  • the third member is welded to the first member via the penetration portion of the second member.
  • the third member has an overhanging portion that projects radially outward inside the recessed portion. Due to the solidification contraction of the third member, the second member is compressed and fixed between the first member and the third member.
  • a recess is provided in at least one of the first member and the second member, and the melted third member is welded to the first member while spreading radially outward inside the recess.
  • the joining area of the third member can be increased. Thereby, the joint strength of the first member, the second member, and the third member can be ensured.
  • the recessed portion is formed in the first member.
  • a recess is formed in the first member.
  • the thickness of the first member can be reduced to obtain the heat input required for melting of the first member.
  • the recessed portion is formed in the second member.
  • a recess is formed in the second member.
  • the fourth invention in any one of the first to third inventions, has the recessed portion curved toward the bottom of the recessed portion.
  • a curved portion is provided in the recessed portion.
  • the curved portion is curved toward the bottom of the recessed portion.
  • the joint area of the third member can be increased as compared with the case where the bottom portion of the recessed portion is a flat surface.
  • the melted third member tends to flow toward the center side of the penetrating portion.
  • the recessed portion has an inclined portion inclined toward the bottom portion of the recessed portion.
  • an inclined portion is provided in the recessed portion.
  • the sloping portion is sloping towards the bottom of the recess.
  • the recessed portion has a first recessed portion and a second recessed portion formed at the bottom of the first recessed portion.
  • the second recess is formed at the bottom of the first recess.
  • the joint area of the third member can be increased as compared with the case where the bottom portion of the first recess portion is a flat surface.
  • the bonding area of the filler metal can be increased to secure the bonding strength.
  • FIG. 1 is a side sectional view for explaining the joining structure according to the first embodiment.
  • FIG. 2 is a side sectional view for explaining the joining structure according to the second embodiment.
  • FIG. 3 is a side sectional view for explaining the joining structure according to the third embodiment.
  • FIG. 4 is a side sectional view for explaining the joining structure according to the fourth embodiment.
  • FIG. 5 is a side sectional view for explaining the joining structure according to the fifth embodiment.
  • FIG. 6 is a side sectional view for explaining the joining structure according to the sixth embodiment.
  • FIG. 7 is a side sectional view for explaining the joining structure according to the seventh embodiment.
  • FIG. 8 is a side sectional view for explaining the joining structure according to the eighth embodiment.
  • FIG. 9 is a side sectional view for explaining the joining structure according to the ninth embodiment.
  • FIG. 1 is a side sectional view for explaining the joining structure according to the first embodiment.
  • FIG. 2 is a side sectional view for explaining the joining structure according to the second embodiment.
  • FIG. 10 is a plan view showing the configuration of the first member according to the tenth embodiment.
  • FIG. 11 is a side sectional view for explaining the joining structure.
  • FIG. 12 is a plan view showing the configuration of the first member according to the eleventh embodiment.
  • FIG. 13 is a side sectional view for explaining the joining structure.
  • FIG. 1 shows a first member 10 made of a metal material, a second member 20 made of a material that is difficult to weld to the first member 10, and a third member made of a filler material.
  • the joining structure for joining the members 30 to each other is shown.
  • the first member 10 is a plate-shaped member made of a metal material.
  • the first member 10 has a recessed portion 11 formed at a depth that does not penetrate in the thickness direction.
  • the recessed portion 11 is formed on the overlapping surface of the first member 10 and the second member 20.
  • the recess 11 is formed by a circular recess that opens upward.
  • the opening width of the recessed portion 11 is larger than the inner diameter of the penetrating portion 21 of the second member 20, which will be described later.
  • the recess 11 is formed by, for example, lathe machining or laser machining.
  • the second member 20 is a plate-shaped member made of a material that is difficult to weld to the first member 10.
  • the second member 20 is superposed on the upper side of the first member 10.
  • the second member 20 has a circular penetrating portion 21.
  • the penetrating portion 21 is open at a position corresponding to the recessed portion 11 of the first member 10.
  • the inner diameter of the penetrating portion 21 is smaller than the opening width of the recessed portion 11.
  • the penetrating portion 21 is described as a circular through hole in the present embodiment, it may be a through groove. Further, it may be an elliptical or elongated through hole.
  • the third member 30 is made of a filler material which is a metal material of the same type as the first member 10.
  • the metal materials of the same type are metals that can be welded to each other, and are not only the same materials but also metal materials having good weld bondability such as iron-based metal materials and non-iron-based metal materials. ..
  • a similar metal material is a similar material that is compatible with welding.
  • examples of the combination of the first member 10 and the third member 30 at the time of welding include the following.
  • iron-based metal materials there are mild steel and mild steel, stainless steel and stainless steel, mild steel and high-tensile steel (high-strength steel), high-tensile steel and high-tensile steel, and the like.
  • non-ferrous metal materials include aluminum and aluminum, aluminum and aluminum alloys, and aluminum alloys and aluminum alloys.
  • the second member 20 as a dissimilar material is a material of a material different from that of the first member 10 and the third member 30 as a metal material of the same type, and the first member 10 and the third member 20 are used. It is a material that is difficult to weld to the member 30.
  • the second member 20 as a dissimilar material is a non-iron-based metal such as a copper material or an aluminum material. It is a material.
  • the arc welder 1 includes a nozzle 2 and a tip 3.
  • the nozzle 2 supplies a shield gas or the like to the welded portion of the object to be welded.
  • the tip 3 supplies a welding current to the third member 30.
  • the arc welder 1 generates an arc 5 by supplying a welding current while supplying a third member 30 as a welding electrode to the recessed portion 11 via the penetrating portion 21.
  • the third member 30 melted by arc welding is melt-bonded to the first member 10 and laminated in the penetrating portion 21. Inside the recessed portion 11, the melted third member 30 spreads out in the radial direction from the penetrating portion 21.
  • the melted third member 30 fills the inside of the penetrating portion 21 and then flows out to the peripheral edge portion on the upper surface side of the penetrating portion 21 and spreads like a flange.
  • the third member 30 is provided with a flange portion 31 and an overhanging portion 32.
  • the flange portion 31 projects radially outward from the penetration portion 21 on the surface of the second member 20 opposite to the first member 10 (upper surface in FIG. 1).
  • the flange portion 31 presses the peripheral edge portion of the penetrating portion 21.
  • the overhanging portion 32 projects radially outward from the penetrating portion 21 inside the recessed portion 11 of the first member 10.
  • the overhanging portion 32 is welded to the first member 10.
  • the first member 10 defines a recessed portion 11 formed on the overlapping surface of the first member 10 and the second member 20, and the first member 10 and the second member of the recessed portion 11 are defined. It has an inner peripheral surface 11a that determines a region in contact with the overlapping surface of the member 20 and a bottom surface 11b that defines the bottom surface side of the recessed portion 11.
  • the overhanging portion 32 is located in the recessed portion 11.
  • a gap 11c is formed between the overhanging portion 32 and the inner peripheral surface 11a.
  • the third member 30 solidifies and contracts with respect to the first member 10, so that the second member 20, which is a different material, is compressed and fixed between the flange portion 31 and the first member 10. ..
  • the melted third member 30 becomes a bead, and the portion to be the flange portion 31 melts at the contact portion with the second member 20 as much as possible to form an intermetallic compound, and a brittle portion may exist. Although it has a property, it does not secure the strength at the molten surface which is the contact portion, but secures the strength by pressing the peripheral edge portion of the penetrating portion 21 with the rigidity of the flange portion 31.
  • the recessed portion 11 is provided in the first member 10, and the melted third member 30 is spread outward in the radial direction inside the recessed portion 11.
  • the joint area of the third member 30 can be increased.
  • the plate thickness of the first member 10 is thicker than the plate thickness of the second member 20, it is melted into the first member 10 while minimizing the thermal effect on the second member 20. Can be secured.
  • Embodiment 2 >> Hereinafter, the same parts as those in the first embodiment are designated by the same reference numerals, and only the differences will be described.
  • the second member 20 has a penetrating portion 21 that opens at a position corresponding to the recessed portion 11 of the first member 10.
  • the penetrating portion 21 has a tapered portion 22 that tapers toward the first member 10.
  • the inner diameter of the lower end side of the penetrating portion 21 is smaller than the opening width of the recessed portion 11.
  • the third member 30 is melted by arc welding.
  • the melted third member 30 flows toward the recess 11 along the tapered portion 22 of the penetrating portion 21 and is melt-bonded to the first member 10. Inside the recessed portion 11, the melted third member 30 spreads out in the radial direction from the penetrating portion 21.
  • the melted third member 30 fills the inside of the penetrating portion 21 and spreads like a flange on the upper surface of the tapered portion 22.
  • the third member 30 is provided with a flange portion 31 and an overhanging portion 32.
  • the flange portion 31 presses the tapered portion 22 of the penetrating portion 21.
  • the overhanging portion 32 projects radially outward from the penetrating portion 21 inside the recessed portion 11 of the first member 10. The overhanging portion 32 is welded to the first member 10.
  • the third member 30 solidifies and contracts with respect to the first member 10, so that the second member 20, which is a different material, is compressed and fixed between the flange portion 31 and the first member 10. ..
  • the melted third member 30 can easily flow toward the recessed portion 11. Further, by solidifying the flange portion 31 into a shape along the tapered portion 22, the thickness of the flange portion 31 protruding from the second member 20 can be suppressed.
  • the second member 20 has a stepped portion 25 that opens on a surface (upper surface in FIG. 3) opposite to the first member 10 and a penetrating portion formed on the bottom surface of the stepped portion 25. 21 and.
  • the inner diameter of the penetrating portion 21 is smaller than the opening width of the recessed portion 11.
  • the third member 30 is melted by arc welding.
  • the melted third member 30 is melt-bonded to the first member 10. Inside the recessed portion 11, the melted third member 30 spreads out in the radial direction from the penetrating portion 21.
  • the melted third member 30 fills the inside of the penetrating portion 21 and then flows out to the peripheral edge portion on the upper surface side of the penetrating portion 21, that is, the bottom surface of the stepped portion 25, and spreads like a flange.
  • the third member 30 is provided with a flange portion 31 and an overhanging portion 32.
  • the flange portion 31 presses the peripheral edge portion of the penetrating portion 21.
  • the overhanging portion 32 projects radially outward from the penetrating portion 21 inside the recessed portion 11 of the first member 10. The overhanging portion 32 is welded to the first member 10.
  • the third member 30 solidifies and contracts with respect to the first member 10, so that the second member 20, which is a different material, is compressed and fixed between the flange portion 31 and the first member 10. ..
  • the flange portion 31 of the third member 30 is arranged in the step portion 25 to prevent the flange portion 31 from popping out from the second member 20. Can be done.
  • the second member 20 has a stepped portion 25 that opens on a surface (upper surface in FIG. 4) opposite to the first member 10 and a penetrating portion formed on the bottom surface of the stepped portion 25. 21 and.
  • the bottom surface of the step portion 25 is inclined toward the penetration portion 21.
  • the inner diameter of the penetrating portion 21 is smaller than the opening width of the recessed portion 11.
  • the third member 30 is melted by arc welding.
  • the melted third member 30 is melt-bonded to the first member 10.
  • the melted third member 30 touches the inclined surface of the stepped portion 25, it flows toward the penetrating portion 21 along the inclined surface of the stepped portion 25 and is melt-bonded toward the first member 10.
  • the melted third member 30 spreads out in the radial direction from the penetrating portion 21.
  • the melted third member 30 fills the inside of the penetrating portion 21 and then flows out to the peripheral edge portion on the upper surface side of the penetrating portion 21, that is, the bottom surface of the stepped portion 25, and has a flange shape on the inclined surface of the stepped portion 25.
  • the third member 30 is provided with a flange portion 31 and an overhanging portion 32.
  • the flange portion 31 presses the inclined surface of the step portion 25.
  • the overhanging portion 32 projects radially outward from the penetrating portion 21 inside the recessed portion 11 of the first member 10. The overhanging portion 32 is welded to the first member 10.
  • the third member 30 solidifies and contracts with respect to the first member 10, so that the second member 20, which is a different material, is compressed and fixed between the flange portion 31 and the first member 10. ..
  • the melted third member 30 can easily flow toward the penetrating portion 21. ..
  • the flange portion 31 of the third member 30 can be arranged in the step portion 25 to prevent the flange portion 31 from popping out from the second member 20.
  • the second member 20 has a penetrating portion 21 that opens at a position corresponding to the recessed portion 11 of the first member 10.
  • the inner diameter of the penetrating portion 21 is smaller than the opening width of the recessed portion 11.
  • the third member 30 is melted by arc welding.
  • the melted third member 30 is melt-bonded to the first member 10. Inside the recessed portion 11, the melted third member 30 spreads out in the radial direction from the penetrating portion 21.
  • the molten third member 30 is supplied to the peripheral edge portion of the penetrating portion 21.
  • the melted third member 30 fills the inside of the penetrating portion 21 and spreads like a flange on the peripheral edge portion on the upper surface side of the penetrating portion 21.
  • the third member 30 is provided with a flange portion 31 and an overhanging portion 32.
  • the flange portion 31 presses the peripheral edge portion of the penetrating portion 21.
  • the overhanging portion 32 projects radially outward from the penetrating portion 21 inside the recessed portion 11 of the first member 10. The overhanging portion 32 is welded to the first member 10.
  • the third member 30 solidifies and contracts with respect to the first member 10, so that the second member 20, which is a different material, is compressed and fixed between the flange portion 31 and the first member 10. ..
  • the nozzle 2 of the arc welder 1 is swiveled, and the peripheral portion of the penetrating portion 21 is formed into a spiral shape by low heat input AC welding or short-circuit welding.
  • the flange portion 31 can be formed while suppressing heat input.
  • the second member 20 has a penetrating portion 21 that opens at a position corresponding to the recessed portion 11 of the first member 10.
  • the inner diameter of the penetrating portion 21 is smaller than the opening width of the recessed portion 11.
  • the third member 30 is melted by arc welding.
  • the third member 30 has a first joint portion 35 welded to the first member 10 and a second joint portion 36 welded to the first joint portion 35 to form the flange portion 31.
  • the first joint 35 is formed.
  • the first joint portion 35 has an overhanging portion 32.
  • the overhanging portion 32 is formed by the melted third member 30 extending radially outward from the penetrating portion 21 inside the recessed portion 11.
  • pulse welding is performed using a pulse waveform that alternately repeats peak current and base current.
  • pulse welding the droplets generated at the tip of the filler material are separated from the filler metal at a rate of once per pulse consisting of the peak current and the base current, and the flange portion 31 and the second member 20 are separated. Move away to the side.
  • DC welding with positive electrode properties means that in welding with DC, the filler metal as the welding electrode is on the negative electrode side (minus), and the first member 10 and the second member 20 as the base metal are on the positive electrode side (minus).
  • the heat input to the filler metal as a welding electrode is increased to perform welding.
  • the heat input of the base metal is suppressed, and the melting of the filler metal as the welding electrode is promoted.
  • the filler metal as the welding electrode is set to the negative electrode side and used as the base metal.
  • the first member 10 and the second member 20 are set on the positive electrode side, the heat input to the filler metal as the welding electrode is increased at the peak current to perform welding. As a result, the heat input of the base metal is suppressed, and the melting of the filler metal as the welding electrode is promoted.
  • short-circuit arc welding that repeats an arc state and a short-circuit state may be performed as a welding method that suppresses heat input to the second member 20 although the spread of the arc 5 is small. ..
  • the third member 30 is provided with a first joint portion 35 and a second joint portion 36.
  • the first joint portion 35 is melt-bonded to the first member 10 inside the recess portion 11.
  • the second joint portion 36 is melt-bonded to the first joint portion 35 to form a flange portion 31 that presses the peripheral edge portion of the penetration portion 21.
  • the upper part of the first joint portion 35 it is preferable to weld the upper part of the first joint portion 35 so that the center is recessed. This makes it easier to determine the welding position when the second joint portion 36 is welded to the first joint portion 35. Further, the melted second joint portion 36 can easily gather on the recessed center side of the first joint portion 35, and the shape of the second joint portion 36 can be further adjusted.
  • the third member 30 solidifies and contracts with respect to the first member 10, so that the second member 20, which is a different material, is compressed and fixed between the flange portion 31 and the first member 10. ..
  • the material of the second member 20 is formed by separately forming the third member 30 into the first joint portion 35 and the second joint portion 36. Welding methods or welding conditions can be selected in consideration of the characteristics.
  • the second member 20 has a stepped portion 25 that opens on a surface (upper surface in FIG. 7) opposite to the first member 10 and a penetrating portion formed on the bottom surface of the stepped portion 25. 21 and.
  • the inner diameter of the penetrating portion 21 is smaller than the opening width of the recessed portion 11.
  • the third member 30 is melted by arc welding.
  • the third member 30 has a first joint portion 35 welded to the first member 10 and a second joint portion 36 welded to the first joint portion 35 to form the flange portion 31.
  • the first joint portion 35 is melt-bonded to the first member 10. Inside the recessed portion 11, the melted third member 30 spreads out in the radial direction from the penetrating portion 21.
  • the first joint portion 35 has an overhanging portion 32 welded to the first member 10.
  • the second joint portion 36 is melt-bonded to the first joint portion 35.
  • the second joint portion 36 flows out to the peripheral edge portion on the upper surface side of the penetration portion 21, that is, the bottom surface of the step portion 25, and spreads like a flange.
  • the second joint portion 36 has a flange portion 31 that presses the peripheral edge portion of the penetration portion 21.
  • the third member 30 is provided with a first joint portion 35 and a second joint portion 36.
  • the first joint portion 35 is melt-bonded to the first member 10 inside the recess portion 11.
  • the second joint portion 36 is melt-bonded to the first joint portion 35 to form a flange portion 31 that presses the peripheral edge portion of the penetration portion 21.
  • the third member 30 solidifies and contracts with respect to the first member 10, so that the second member 20, which is a different material, is compressed and fixed between the flange portion 31 and the first member 10. ..
  • the flange portion 31 of the third member 30 is arranged in the step portion 25 to prevent the flange portion 31 from popping out from the second member 20. Can be done.
  • the first member 10 has a recessed portion 11 formed at a depth that does not penetrate in the thickness direction.
  • the recessed portion 11 is formed on the overlapping surface of the first member 10 and the second member 20.
  • the recess 11 is formed by a circular recess that opens upward.
  • the second member 20 has a recessed portion 11 formed at a depth that does not penetrate in the thickness direction, and a penetrating portion 21.
  • the recessed portion 11 is formed on the overlapping surface of the first member 10 and the second member 20.
  • the recess 11 is formed by a circular recess that opens downward.
  • the recessed portion 11 of the first member 10 and the recessed portion 11 of the second member 20 are formed with the same opening width.
  • the penetrating portion 21 opens at a position corresponding to the recessed portion 11 of the first member 10 and the second member 20.
  • the inner diameter of the penetrating portion 21 is smaller than the opening width of the recessed portion 11.
  • the third member 30 is melted by arc welding.
  • the melted third member 30 is melt-bonded to the first member 10. Inside the recessed portion 11, the melted third member 30 spreads out in the radial direction from the penetrating portion 21.
  • the melted third member 30 fills the inside of the penetrating portion 21 and then flows out to the peripheral edge portion on the upper surface side of the penetrating portion 21 and spreads like a flange.
  • the third member 30 is provided with a flange portion 31 and an overhanging portion 32.
  • the flange portion 31 presses the peripheral edge portion of the penetrating portion 21.
  • the overhanging portion 32 projects radially outward from the penetrating portion 21 inside the recessed portion 11 of the first member 10 and the second member 20.
  • the overhanging portion 32 is welded to the first member 10.
  • the third member 30 solidifies and contracts with respect to the first member 10, so that the second member 20, which is a different material, is compressed and fixed between the flange portion 31 and the first member 10. ..
  • the recessed portion 11 is provided in the first member 10 and the second member 20, and the melted third member 30 is expanded inside the recessed portion 11. Therefore, the joint area of the third member 30 can be increased.
  • the recess 11 may be provided only in the second member 20.
  • the first member 10 has a recessed portion 11 formed at a depth that does not penetrate in the thickness direction.
  • the recessed portion 11 has a curved portion 12 that is curved toward the bottom portion of the recessed portion 11.
  • the second member 20 has a penetrating portion 21 that opens at a position corresponding to the recessed portion 11 of the first member 10.
  • the inner diameter of the penetrating portion 21 is smaller than the opening width of the recessed portion 11.
  • the third member 30 is melted by arc welding.
  • the melted third member 30 flows along the curved portion 12 of the recessed portion 11 and is melt-bonded to the first member 10. Inside the recessed portion 11, the melted third member 30 spreads out in the radial direction from the penetrating portion 21.
  • the first member 10 defines a recessed portion 11 formed on the overlapping surface of the first member 10 and the second member 20, and the first member 10 and the second member of the recessed portion 11 are defined. It has an inner peripheral surface 11a that determines a region in contact with the overlapping surface of the member 20 and a bottom surface 11b that defines the bottom surface side of the recessed portion 11 (inner surface of the curved portion).
  • the inner peripheral surface 11a and the bottom surface 11b defining the recess 11 are configured to have one curved curve
  • the inner peripheral surface 11a and the bottom surface 11b may be represented by one surface, and the inner peripheral surface 11a may be represented.
  • the bottom surface 11b may be combined to define the recessed portion 11 as the inner peripheral surface 11a.
  • the region of the recessed portion 11 in contact with the overlapping surface of the first member 10 and the second member 20 is defined by the recessed portion 11 in the overlapping surface of the first member 10 and the second member 20. Is represented by the boundary where.
  • the overhanging portion 32 is located in the recessed portion 11.
  • a gap 11c is formed between the overhanging portion 32 and the inner peripheral surface 11a.
  • the melted third member 30 fills the inside of the penetrating portion 21 and spreads like a flange on the upper surface of the second member 20.
  • the third member 30 is provided with a flange portion 31 and an overhanging portion 32.
  • the flange portion 31 presses the tapered portion 22 of the penetrating portion 21.
  • the overhanging portion 32 projects radially outward from the penetrating portion 21 inside the recessed portion 11 of the first member 10. The overhanging portion 32 is welded to the first member 10.
  • the third member 30 solidifies and contracts with respect to the first member 10, so that the second member 20, which is a different material, is compressed and fixed between the flange portion 31 and the first member 10. ..
  • the third member 30 is joined as compared with the case where the bottom portion of the recessed portion 11 is a flat surface.
  • the area can be increased.
  • the first member 10 has a recessed portion 11 formed at a depth that does not penetrate in the thickness direction.
  • the recessed portion 11 has an inclined portion 13 inclined toward the bottom portion of the recessed portion 11.
  • the second member 20 has a penetrating portion 21 that opens at a position corresponding to the recessed portion 11 of the first member 10.
  • the inner diameter of the penetrating portion 21 is smaller than the opening width of the recessed portion 11.
  • the third member 30 is melted by arc welding.
  • the melted third member 30 flows along the inclined portion 13 of the recess portion 11 and is melt-bonded to the first member 10. Inside the recessed portion 11, the melted third member 30 spreads out in the radial direction from the penetrating portion 21.
  • the first member 10 defines the recessed portion 11 and determines as the inner surface of the inclined portion a region in contact with the overlapping surface of the first member 10 and the second member 20 of the recessed portion 11. It has a bottom surface 11b that defines the inner peripheral surface 11a and the bottom surface side of the recess 11.
  • the inner peripheral surface 11a and the bottom surface 11b defining the recess 11 are composed of continuous inclined surfaces having a predetermined inclination angle
  • the inner peripheral surface 11a and the bottom surface 11b may be represented by one inclined surface.
  • the inner peripheral surface 11a and the bottom surface 11b may be combined to define the recessed portion 11 as the inner peripheral surface 11a.
  • the region of the recessed portion 11 in contact with the overlapping surface of the first member 10 and the second member 20 is defined by the recessed portion 11 in the overlapping surface of the first member 10 and the second member 20. Is represented by the boundary where.
  • the overhanging portion 32 is located in the recessed portion 11.
  • a gap 11c is formed between the overhanging portion 32 and the inner peripheral surface 11a.
  • the melted third member 30 fills the inside of the penetrating portion 21 and spreads like a flange on the upper surface of the second member 20.
  • the third member 30 is provided with a flange portion 31 and an overhanging portion 32.
  • the flange portion 31 presses the tapered portion 22 of the penetrating portion 21.
  • the overhanging portion 32 projects radially outward from the penetrating portion 21 inside the recessed portion 11 of the first member 10. The overhanging portion 32 is welded to the first member 10.
  • the third member 30 solidifies and contracts with respect to the first member 10, so that the second member 20, which is a different material, is compressed and fixed between the flange portion 31 and the first member 10. ..
  • the third member 30 is joined as compared with the case where the bottom portion of the recessed portion 11 is a flat surface.
  • the area can be increased.
  • the first member 10 has a recess 11 formed at a depth that does not penetrate in the thickness direction.
  • the recessed portion 11 has a first recessed portion 14 that opens upward, and a plurality of second recessed portions 15 formed at the bottom of the first recessed portion 14.
  • the second recessed portion 15 is formed in a tapered shape that tapers downward.
  • the second member 20 has a penetrating portion 21 that opens at a position corresponding to the recessed portion 11 of the first member 10.
  • the inner diameter of the penetrating portion 21 is smaller than the opening width of the recessed portion 11.
  • the third member 30 is melted by arc welding.
  • the melted third member 30 flows toward the bottom of the first recess 14, is dispersed in the plurality of second recesses 15, and is melt-bonded to the first member 10.
  • the melted third member 30 spreads out in the radial direction from the penetrating portion 21.
  • the melted third member 30 fills the inside of the penetrating portion 21 and spreads like a flange on the upper surface of the second member 20.
  • the third member 30 is provided with a flange portion 31 and an overhanging portion 32.
  • the flange portion 31 presses the tapered portion 22 of the penetrating portion 21.
  • the overhanging portion 32 projects radially outward from the penetrating portion 21 inside the recessed portion 11 of the first member 10. The overhanging portion 32 is welded to the first member 10.
  • the third member 30 solidifies and contracts with respect to the first member 10, so that the second member 20, which is a different material, is compressed and fixed between the flange portion 31 and the first member 10. ..
  • the bottom of the first recess 14 is a flat surface.
  • the joint area of the third member 30 can be increased.
  • the embodiment may have the following configuration.
  • the fillering material as the third member 30 includes a melting electrode type (consumable electrode type) and a non-melting electrode type (non-consumable electrode type). Therefore, for example, instead of the welding wire as the filler wire of the molten electrode type (consumable electrode type) used as the third member 30, the filler wire as the filler wire of the non-melting type (non-consumable electrode type) is used. May be used to perform laser filler welding to perform laser welding on the first member 10.
  • the first member 10 is irradiated with a laser to ensure the penetration of the surface of the first member 10 firmly, and then only the supplied filler wire is irradiated with the laser to obtain a third member.
  • the filler wire, which is the member 30, can be melted.
  • the inside of the penetrating portion 21 can be filled with the third member 30 while suppressing the heat input to the second member 20.
  • the molten filler wire which is the third member 30, can be easily adapted to the second member 20.
  • the combination of the shape of the recessed portion 11 of the first member 10 and the shape of the penetrating portion 21 of the second member 20 described in the present embodiment is merely an example, and may be another combination. ..
  • the present disclosure is extremely useful and has high industrial applicability because it has a highly practical effect that the bonding area of the filler metal can be increased to secure the bonding strength. ..

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Connection Of Plates (AREA)

Abstract

Une partie cavité (11) est formée dans un premier élément (10). Un troisième élément (30) est soudé sur le premier élément (10) via une partie traversante (21) d'un second élément (20). Le troisième élément (30) possède une partie en porte-à-faux (32) qui se trouve en porte-à-faux vers l'extérieur d'une direction radiale dans la partie interne de la partie cavité (11). Le second élément (20) est fixé par pression entre le premier élément (10) et le troisième élément (30) par retrait pendant la solidification du troisième élément (30).
PCT/JP2021/031466 2020-09-01 2021-08-27 Structure de liaison WO2022050182A1 (fr)

Priority Applications (2)

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JP2022546288A JPWO2022050182A1 (fr) 2020-09-01 2021-08-27
CN202180046284.6A CN115803137A (zh) 2020-09-01 2021-08-27 接合结构

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JP2020-146951 2020-09-01
JP2020146951 2020-09-01

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WO2022050182A1 true WO2022050182A1 (fr) 2022-03-10

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JP (1) JPWO2022050182A1 (fr)
CN (1) CN115803137A (fr)
WO (1) WO2022050182A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016056563A1 (fr) * 2014-10-06 2016-04-14 新日鐵住金株式会社 Procédé de soudage par points à l'arc et dispositif de soudage pour mettre en œuvre ce procédé
WO2018030272A1 (fr) * 2016-08-09 2018-02-15 パナソニックＩｐマネジメント株式会社 Structure de jonction
WO2018123716A1 (fr) * 2016-12-27 2018-07-05 株式会社神戸製鋼所 Procédé de soudage à l'arc à des fins d'assemblage de matériaux multiples, élément d'aide à l'assemblage, joint soudé à matériaux multiples, et matériau en plaque équipé d'un élément d'aide à l'assemblage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016056563A1 (fr) * 2014-10-06 2016-04-14 新日鐵住金株式会社 Procédé de soudage par points à l'arc et dispositif de soudage pour mettre en œuvre ce procédé
WO2018030272A1 (fr) * 2016-08-09 2018-02-15 パナソニックＩｐマネジメント株式会社 Structure de jonction
WO2018123716A1 (fr) * 2016-12-27 2018-07-05 株式会社神戸製鋼所 Procédé de soudage à l'arc à des fins d'assemblage de matériaux multiples, élément d'aide à l'assemblage, joint soudé à matériaux multiples, et matériau en plaque équipé d'un élément d'aide à l'assemblage

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JPWO2022050182A1 (fr) 2022-03-10

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